Question

A labourer earns 1980 in 12 days.(:- a) How much does he earns in 7 days?(:- b) In how many days will he earn 2640 rupees.​

Answer 1

$\sf \Large Solution!!$

$\sf \to In\:12\:days,\:he\:earns=Rs\:1,980$

$\sf \to In\:1\:day,\:he\:earns=Rs\:\dfrac{1,980}{12}=Rs\:165$

$\sf \to In\:7\:days,\:he\:earns=Rs\:165\times 7=Rs\:1,155$

$\sf \to He\:will\:earn\:Rs\:2,640\:in=\dfrac{2640}{165}\:days\\\sf =16\:days$

(a) Rs 1,155

(b) 16 days